26
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Tagging emc effects and hadronization mechanisms by semi-inclusive deep inelastic scattering off nuclei

      Preprint
      , ,

      Read this article at

      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          The semi-inclusive deep inelastic scattering of electrons off a nucleus A with detection of a slow nucleus (A-1) in the ground or low excitation states, i.e. the process A(e,e'(A-1))X, can provide useful information on the origin of the EMC effect and the mechanisms of hadronization. The theoretical description of the process is reviewed and the results of several calculations on few-body systems and complex nuclei are presented.

          Related collections

          Most cited references5

          • Record: found
          • Abstract: not found
          • Article: not found

          The EMC effect

            Bookmark
            • Record: found
            • Abstract: found
            • Article: found
            Is Open Access

            Jet Tomography of Hot and Cold Nuclear Matter

            , (2010)
            Medium modification of parton fragmentation functions induced by multiple scattering and gluon bremsstrahlung is shown to describe the recent HERMES data in deeply inelastic scattering (DIS) very well, providing the first evidence of \(A^{2/3}\)-dependence of the modification. The energy loss is found to be \( \approx 0.5\) GeV/fm for a 10-GeV quark in a \(Au\) nucleus. Including the effect of expansion, analysis of the \(\pi^0\) spectra in central \(Au+Au\) collisions at \(\sqrt{s}=130\) GeV yields an averaged energy loss equivalent to \( \approx 7.3\) GeV/fm in a static medium. Predictions for central \(Au+Au\) collisions at \(\sqrt{s}=200\) GeV are also given.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: found
              Is Open Access

              On the dependence of the wave function of a bound nucleon on its momentum and the EMC effect

              It is widely discussed in the literature that the wave function of the nucleon bound in a nucleus is modified due to the interaction with the surrounding medium. We argue that the modification should strongly depend on the momentum of the nucleon. We study such an effect in the case of the point-like configuration component of the wave function of a nucleon bound in a nucleus A, considering the case of arbitrary final state of the spectator A-1 system. We show that for non relativistic values of the nucleon momentum, the momentum dependence of the nucleon deformation appears to follow from rather general considerations and discuss the implications of our theoretical observation for two different phenomena: i) the search for medium induced modifications of the nucleon radius of a bound nucleon through the measurement of the electromagnetic nucleon form factors via the A(e,e'p)X process, and ii) the A-dependence of the EMC effect; in this latter case we also present a new method of estimating the fraction of the nucleus light-cone momentum carried by the photons and find that in a heavy nuclei protons loose about 2% of their momentum.
                Bookmark

                Author and article information

                Journal
                18 March 2011
                Article
                1103.3674
                58a2d444-55e2-416e-a1ab-1e983c81b145

                http://arxiv.org/licenses/nonexclusive-distrib/1.0/

                History
                Custom metadata
                16 pages, 7 Figures. Invited talk at the 3rd International Conference "Nuclear and Particle Physics with CEBAF at Jefferson Lab", Dubrovnik, October 3-8, 2010. To appear in the Journal "Fizika"
                nucl-th hep-ph nucl-ex

                Comments

                Comment on this article